Venn diagrams are a type of diagram that uses circles to group and organise things, as seen below:
A Venn diagram is a helpful tool in displaying information about two categories, especially if things can be in both categories. Some Venn diagrams will use the diagram to sort the different objects. The one shown above uses numbers in each section to show how many objects fit into that section.
Some Venn diagrams wont have the outside box. This usually means that everything fits into one of the categories, or that everything outside those categories is being ignored.
A group of students were asked why they skipped breakfast. The two reasons given were that they were "not hungry" and they were "too busy".
How many of the students skipped breakfast because they were not hungry?
How many of the students only skipped breakfast because they were too busy?
How many of the students skipped breakfast because of one reason?
Venn diagrams are a type of diagram that uses circles to group and organise things.
Venn diagrams can be drawn with three circles. These use the same concepts as a two circle Venn diagram but with another circle, represeting a third category, drawn overlapping the other two. We can work things out in the same way, but there are many more places that the categories overlap.
Joanne is struggling to decide what to watch online. She decides to pick one movie at random from the streaming website. A Venn diagram of her options sorts movies into three categories based on their genre: Comedy, Action and Horror.
How many of the movies are horror films?
How many of the movies fit into only one genre?
How many of the movies are an action film combined with at least one other genre?
Three circle Venn diagram is a diagram shows how components of three sets are related using three overlapping circles.